... ,H.D.G Cap Screw Gr2 gradestandardmaterialdiameterlengthsurface3.6(A)DIN(A)Carbon Steelm6-m3010mm-250mm(A)zinc4.61.DIN9331.C10081/4''-1'''1/2 ... M27*90-270 M30*90-3005)grade:4.6,4.8 ,5.6,5.8,6.8,8.8,10.96)finish:zinc ... Product Quality Inspection Qualified Enterprises,Respect Contract and Credit Enterprise, a member of China National Machinery General Parts Industry Association,Our ...